package com.qk.service.impl;


import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qk.common.JwtUtils;
import com.qk.common.PageResult;
import com.qk.dto.UserDto;
import com.qk.entity.User;
import com.qk.exception.BusinessException;
import com.qk.mapper.UserMapper;
import com.qk.service.UserService;
import com.qk.vo.LoginResultVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public PageResult<User> list(UserDto userDto) {
        // 分页
        PageHelper.startPage(userDto.getPage(),userDto.getPageSize());
        //调用mapper接口查询
        List< User> userList = userMapper.selectList(userDto);
        // 封装并返回结果
        Page<User> page = (Page<User>) userList;// 强转
        return new PageResult<>(page.getTotal(),page.getResult());
    }
    @Override
    public void add(User user) {
        // 添加时间
        user.setCreateTime(LocalDateTime.now());
        user.setUpdateTime(LocalDateTime.now());
        //设置密码
        String password = user.getUsername() + "123";
        user.setPassword(DigestUtils.md5DigestAsHex(password.getBytes()));
        userMapper.insert( user);
    }
    @Override
    public void delectById(List<Integer> ids) {
        userMapper.delectByIds(ids);
    }

    @Override
    public User getById(Integer id) {
        return userMapper.selectById(id);

    }

    @Override
    public void update(User user) {
        user.setUpdateTime(LocalDateTime.now());
        userMapper.update(user);

    }
    @Override
    public List<User> listAll() {
        List<User> users = userMapper.listAll();
        return users;
    }
    @Override
    public List<User> listByRoleLabel(String roleLabel) {//根据角色标识查询用户信息
        return userMapper.listByRoleLabel(roleLabel);
    }

    @Override
    public List<User> listByDeptId(Integer deptId) {
        return userMapper.listByDeptId(deptId);
    }


    @Override
    public LoginResultVo login(User user) {
        User u = userMapper.selectByUsername(user.getUsername());
        if (u == null){
            log.info("用户不存在");
            throw new BusinessException("用户不存在");
        }
        String _pass = DigestUtils.md5DigestAsHex(user.getPassword().getBytes());
        if (!_pass.equals(u.getPassword())){
            log.info("密码错误");
            throw new BusinessException("密码错误");
        }
        if(u.getStatus() != 1){
            log.info("用户被禁用");
            throw new BusinessException("用户被禁用");
        }
        LoginResultVo loginResultVo = new LoginResultVo();
        loginResultVo.setId(u.getId());
        loginResultVo.setUsername(u.getUsername());
        loginResultVo.setName(u.getName());
        loginResultVo.setImage(u.getImage());
        loginResultVo.setRoleLabel(u.getRoleLabel());
        loginResultVo.setToken("");

        Map<String,Object> claims = new HashMap<>();
        claims.put("id",u.getId());
        claims.put("username",u.getUsername());
        String jwt = JwtUtils.generateToken(claims);
        loginResultVo.setToken(jwt);

        return loginResultVo;
    }



}
